1. Department of Chemical Engineering, National Taiwan University, Daan District, Taipei 106, Taiwan
2. Department of Chemical Engineering, National Taiwan University of Science and Technology, Daan District, Taipei 106, Taiwan
3. R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli District, Taoyuan 320, Taiwan
4. Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Daan District, Taipei 106, Taiwan
5. National Synchrotron Radiation Research Center, East District, Hsinchu 300, Taiwan